AND CITY BEAUTIFUL, 
91 
something that kills the insects by coming in con¬ 
tact with their bodies. Kerosene emulsion, ivory soap 
solutions, and whale oil soap are among the remedies for 
this class of insects. The chewing insects are easily killed 
0. HBfDFMAHSC 
The Destructive Elm Deaf Beetle 
by spraying with any active poison as lead arsenate, paris 
green, helebore. It is easy to distinguish them as they 
eat up the leaves. Lava (often called worms) of many 
insects come under this class. Scale insects are really suck¬ 
ing insects. They stick so closely to the bark of twigs 
that they are often overlooked and the tree or shrub is 
sometimes nearly killed before the cause is discovered. 
Careful examination, however, and especially scraping 
the thumb nail along the bark of the twig, will indicate 
their presence. They require special treatment, usually 
winter spraying. 
